6512062991 has 16 divisors (see below), whose sum is σ = 7692602880. Its totient is φ = 5397187680.

The previous prime is 6512062981. The next prime is 6512063009. The reversal of 6512062991 is 1992602156.

It is a cyclic number.

It is not a de Polignac number, because 6512062991 - 2⁶ = 6512062927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6512062981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104051 + ... + 154436.

It is an arithmetic number, because the mean of its divisors is an integer number (480787680).

Almost surely, 2^6512062991 is an apocalyptic number.

6512062991 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

6512062991 is a deficient number, since it is larger than the sum of its proper divisors (1180539889).

6512062991 is a wasteful number, since it uses less digits than its factorization.

6512062991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258614.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 6512062991 is about 80697.3542998778. The cubic root of 6512062991 is about 1867.4093585082.

The spelling of 6512062991 in words is "six billion, five hundred twelve million, sixty-two thousand, nine hundred ninety-one".